package org.shj;

public class Test {

	public static void main(String[] args){
		Integer a = 10;
		Integer b = 20;
		a = a^b;
		System.out.println(a);
		System.out.println(b);
		b = b^a;
		System.out.println(a);
		System.out.println(b);
		a = a^b;
		System.out.println(a);
		System.out.println(b);
		
		System.out.println(b >> 1);
	}
}
